Peronospora potentillae-sterilis Gäumann, 1923

on Potentilla

gall

upper side of the leaves with yellowish spots. Underside with a grey fungal down, consisting of erect, distally several times dichotomously branched conidiophores, each one ending upon a ± globular conidium.

hostplants

Rosaceae, narrowly monophagous

Potentilla recta, sterilis.

references

Brandenburger (1985a), Doppelbaur, Huber & Poelt (1965a), Göker, Voglmayr, Riethmüller ao (2003a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Riethmüller, Voglmayr, Göker ao (2002a).

mod 1.ix.2018